Oil burner



Jan. 2o, 1,925.

l.. S. CHADWICK OIL BURNER 2 Sheets-Sheet 1 Filed April 1'7- 1920 jan. 20, 1925- 1,523,582

| s. cHADwlcK OIL BURNER Filed April 1'7. 1920 2 Sheets-Sheet 2 Patented dan. 20, i925.

":NT F F LEE S. CHADWICK, OF CLEVELAND, OHG, ASSIG'NOR TO THE' CLEVELAND IvIETAL PRODUCTS COll/BANY, OF CLEVELAND, OHIG, A CORPORATION OF OHIO;

OIL BURNER.

Application filed April 17', 1920.

To all fr0/10m t may concern:

Be it known that l, Lnn S. CHnDwrcK, a citizen ot the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and` usef'ul ln'iproveinent in (')il Burners, of' which the following is a full, clear, and ei:- act description, reference being` had to the accompanying drawings.

This invention relates to improvements in that class of oilburners wherein wicks, .particularly of' the tubular variety, are employed; and it has to do more especially with a novel form of wick stop and an indicator 'for showing the elevation of? the wick at any time.

rlf'he objects are to provide an efficient, yetsimple, and inexpensive, wick stop that may be easily' emplaced and locked within the burner and as conveniently removed therefrom,- that will maintain the wick even; that is of a design lending` itself readily to sheet metal construction and wherein the elements are connected together by interlocking integral parts; and,`further, to provide a self'- adjusting indicator which adapts itself to the variable length of the wick as the latter is consumed, and which is simple, cheap and durable, and of such a nature as to be practically self-explanatory and therefore capable of' being readily understood by novices.

These objects are attained in the construction illustrated in the drawings accompanying and forming a part hereof', and wherein Fig. 1 is a sectional side elevation of a burner embodying my invention; Fig. 2 is a plan of the burner with the commingling tubes omitted; Fig. 3 is a side eleva` tional view of the wick stop; Fig. a' is a section inside the operating handle of the wick raiser on the line 4 4 of Fig. 2, and showing the indicator in detail; and Fig. 5 is a perspective view of the index pointer oi" the indicator.

` The particular burner wherein I have elected to show my improvements incorporated is oli a well known type and comprises inner and outer wick tubes 1 and 2, which are spaced apart and are connected together with a liquid tight joint at their lower end so as to enclose an annular wick space which has communication through a tubular connection 3 with a supply pipe l, the burner being securely held to the pipe on one side Serial No. 374,555.

by means of a clamp 5, whichembraces the connection 3 and supply pipe 4, and on its opposite side. by a hook 6.

The inner and outer wick tubes are provided near their upper ends with ledges and 11, respectively', and secured to the inner wick tube 1 immediately below the ledge 10 is an anchorage element or spider 12. The peripheral portion of' the spider is connected, through a rustoconical section 13, with a horizontal portion having slots 16, the central portion of the spider beingA depressed or dished to a depth considerably below the plane of the horizontal portion 15. rlhis latter portion and the frustoconical portion 1,3 are provided with liberal sized air openings 17 and 18, respectively.

The wick stop, designated generally by the numeral 2O is shown as made up of three parts, the first, a diaphragm, havingan annular portion 21 which is tiered outwardly and slightly upwardly trom a depressed central portion 22 and is surrounded by an annular depression 23 beyond which it is provided with a peripheral flange 24 from which the stop lingers 25 rise. The depressed portion 23 is designed to rest upon the ledge 10, and when in such position the fingers 25 extend upwardly and outwardly over the wick space. Theyannular portion 21 is provided with air openings 26. Secured with its upper edge within the angle between the annular portion 21 and the depressed portion 22 is the second part consisting of a crown which terminates at its lower end in locking fingers 31 that are designed to project through the slots 16- of the horizontal portion 15 of spider 12, and these fingers have laterally opening notches 32 which are adapted to embrace the parts ot the horizontal portion 15 between the slots 1G when the stop 2O is turned by means oit' a member 83 that is secured to it within the depression 22 and constitutes the third part of the wick stop. This member, though ot a sheet metal stamping, is made to resemble a winged nut so as to suggest to the user that the same is to be turned. ln placing the wick stop in position it is grasped by the member 33 and lowered into position with the fingers 30 projecting through the slots 16 and when the depressed portion 2% engages the ledge 10 the stop is turned lto secure it to the spider 12. It will be observed Fig. l.

that the lower sides ot the notches 32 are slightly inclined so as to operate with a cammingl action against the cooperating parts of the spider 12 and draw the elements lirmly together'. The crown 30 and the member 33 may be secured to the tirst inentioned part of the stop by tongues 35 that are carried by said crown and member and projected through slots in the diaphragm.

Commingling tubes 40 and il are arranged to rest with their respective lower ends within the depressed portion 23 ot the wick stop and upon the ledge ll ot the outer wick tube, as clearly illustrated in The eoininingling tubes are enclosed Within a drinn 49, and the inner coniniingling tube, near its lower end is provided with a head 44: that supports, at its center, a thimble 45. The thiinble receives the upper end of a rod 4:6 that is guided through a centi-al aperture l? of spider l2, passing through an aperture of the wick stop, and at its lower end is turned forwardly andprojected through a slot 48 of a plate i9 which dependsfroin the burner. Beyond the itront ot the plate the rod is .equipped with a handle 50 by ymeans ot which the rod and the commingling tubes and drum may be raised; and they may be retained in elevated position by engaging the forwardly turned portion or' the rod Within an offset 51 of the slot. The

raising oi' the commingling tubes is tor ,thev

obviouspurpose of affording access to the wick for lighting.

A wick 55 occupies the space between the wick tu-bes and is equipped with the usual carrier 56 that cooperates with the star wheels 57 secured to the wick raising spindle 58. The star wheels, and the spindle throughout the greater part of its length,

are enclosed within a casing 60 that is supe 'ported and spaced from the outer wick tubeby a bracket 61'.V A dial 62 is secured to the outer end of the tubular portion of the casing 60 and the same is surrounded by a prominent bead 63. It will be noted in Fig.

t that the dial bears the words Out,v

Low, Medium, and High and associated with the first is an arrow to indicate that to turn the burner out it should be turned to the limit of its movement in the direction indicated by the arrow. Frictionally engaged about the protruding end ot' the spindle 58 is the split sleeve 65 of a onepiece sheet metal pointer 6G, the construction ot which is better illustrated in Fig. Now, when the spindle is turned by means of the operating handle 67 in a direction to lower the wick and extinguish the llame, the pointer will engage the bea-d ot the dial and its movement will be arrested therebyV considerably before the spindle ceases to rotate. When it is desired to light the burner, after the coinmingling tubes and drum have been lifted, the spindle is turned in the opposite direction as far as possible or until the wick.

is blocked in its upward movement by the lingers 25 ot the wick stop. Also, before the spindle ceases to rotate .in the` latter =direc tion, the pointer 66 engages the bead at the opposite end of the dial andV is held thereby against further movement. Now, when the wick has been lighted, the spindle is rotated backwardly to the designation corresponding to the wick position desired.

lit will be seen trom this explanation that Y every time the burner is lighted the index linger will be set to a proper position with respect to the condition of the wick, obviating the need of resetting the inde-X linger from time to time as the wick is consumed as is the case in prevailing styles of an indicator' associated with burners ot' the type herein disclosed. Y.

Having thus described my invention, what l claim is :wf

l. A burner ot the character described,V

comprising inner and outer wick. tubes, au.

anchorage element within the inner wick tube, a wick stop adapted to be mounted Vwithin the upper end of the inner wick tube,

IOW

2. In a burner involving inner and outer wick tubes and an anchorage element within the inner wick tube, a wick stop comprising a diaphragm having a central depressed portion and upwardly and outwardly eX,-

tending peripheral stop fingers, crown applied Vto the underneath side of the diaphragm with its upper end surrounding and positioned by the central depressed portion or' the diaphragm and involving locking fingers ior cooperation with the anchorage element.

3. In a burner involving wick tubes and an anchorage element ,within the inner wick tube, a wick stop comprising a diaphragm having la depressed central portion, a portion flaring outwardly and slightly upwardly therefromY and surrounded hy an annular depression.skirted by an upwardly'extending peripheral iiange Vinner and outer' and a iis -trom Vwhich stop fingers project upwardly and outwardly, a crown applied to the underneath sideof the diaphragmA and having its upper end surrounding said depressed central portion, said crown having parts for interlocking engagement with the anchorage element when the wick stop is turned, and means for turning the Ywick stop. t

4l; Iny a burner involving inner and outer lll '.wicktubes and an anchorage element within the inner wick tube, a wick stop comprising a diaphragm having a depressed central portion and stop lingers projecting upwardly and outwardly from its periphery, a crown applied to the underneath side ot the dia* phragm and having parts for .interlocking engagement with the anchorage element when the wick stop is turned, and an operating handle attached to the diaphragm and situated within said depressed central portion.

ln a burner involving inner and outer wick tubes and an anchorage element wit-hin the inner wick tube, a wick stop comprising a diaphragm having a central depressed portion and an upwardly extending peripheral flange from which stop lingers project upwardly and outwardly, a crown applied to the lower side of the diaphragm and having its upper end engaged about the central depression thereof and attached to the diaphragm by integral tongues that are extended through slots in the latter, said crown having.depending portions that. are slotted laterally for interlocking engagement with the anchorage element when the wick stop is turned, and an operating handle having the appearance of a wingedl nutl situated within the depressed portion of the diaphragm and attached thereto by integral tongues that are extended through slots in the diaphragm.

6. In a burner involving inner and outer wick tubes and an anchorage element within the inner wick tube, a wick stop comprising a diaphragm having stop lingers projecting upwardly and outwardly from its periphery, a crown attached to the under side ot' the diaphragm by integral tongues that are eX- tended through slots in the latter, said crown having depending portions for interlocking engagement with the anchorage element when the wick stop is turned, and an operating handle attached to the diaphragm by integral tongues that are eX- tended through slots in the latter.

T. ln a burner involving inner and outer wick tubes, an anchorage element having its periphery secured to the inner wick tube adjacent the upper end thereof and converging downwardly to an annular horizontal portion having relative narrow arcuate slots, and a wick stop adapted to be inserted into the upper end of the inner tube and having segmental locking fingers that are ranged to be inserted through said slots and interloek with the portions of the anchorage element beyond the ends of the slots when the wick stop is turned, the parts being so designed and proportioned that the wick stop is thus held positively against upward movement,

8. In a burner involving inner and outer wick tubes, the former having an inwardly projecting ledge adjacent its upper end, au anchorage elei'nentdisposed below the planel ot' andhaving its peripheral portion engaged with the under side ot the aforesaid ledge, and a wick stop adapted to rest upon said ledge and having depending extensions for interlocking engagement with the) anchorage elementi when the wick stop is turned, the interengaging parts oiz the wick stop and anchorage element being ot such nature as to create a tension between the wick stop and element when the parts are inter-locked.

9. ln a burner involving` inner and outer wick tubes, the former having an abutment adjacent. its upper end, an anchorage element disposed below said abutment, and a wick stop adapted to rest upon the abutment and having depending extensions for interlocking engagement with the anchorage element when the wick stop turned, the interengaging parts ot the wick stop and anchorage element being` of such nature as to draw the wick stop into tirm engagement with the abutment when the parts are interlocked.

10. In an oil burner of the class set Yforth, the combination oi means for limiting the upward movement of the wick, a wick rais ing spindle, a dial with respect to which the spindle is rotatable, a pointer yieldingly engaged with the spindle and supported thereby in operative relation to the dial, the dial bearing indications designating the various positions of the wick and directions to turn the wick to its lowermostposition for the purpose specified, and means for restraining the movement of the pointer in both directions to less than that of the spindle.

ll. ln an oil burner of the class set forth, the combination ot means for limiting the upward movement of the wick, a wick raising` spindle, a dial supported in operating relation to the spindle and with respect to which the spindle is rotatable, the dial hav ing a depressed area and bearing indications which designate the various positions of the wick and directions to turn the wick to its lowermost posit-ion as for the purposeof extinguishing the liame, and an index pointer frictionally engaged with the spindle and having a part operating over and in juxtaposition to thel depressed portion of the dial and arranged to engage the elevations at the ends of said depressed portion thereby to limit its movement to less than that of the spindle when the latter is turned in either direction, in one instance to raise the wick to its maximum elevation for lighting, and in the other to lower the wick to its maximum depressed position for extinguishing the llame.

12. ln an oil burner of the class setforth, the combination of means for limiting the upward movement of the wick, a wick raisingspindle, a dial with respect to which the spindle is rotatable and bearinO indications designating the various positions of the wick, and an index pointer formed of a sinn gle piece of sheet metal and incorporating a vane and a split sleeve that is frictionally engaged about the spindle, the pointer being` :arranged to engage parts ot the dial for 'limiting its movement to less than that of the spindle in either direction.

lf3. An indexV pointer constructed of a single piece of sheet material bent over upon .itself to form a vane and having` opposed portions curved outwardlyv to constitute a spindle embracingsleeve.

la. ln an oil burner ot the class set forth, the combination of a stop for arresting the upward movement of the wick, an element tor raising and lowering the wick, and indicating mechanism associated with said element and comprising two parts that are movable one with respect-'toY the other, the movable part being yieldingly enga-ged with i rsaid element, and means limiting the movement of said movable part to less than that of the element when the latter is moved to the limit oit' its movement in either direction.

l5. In an oil burner of the class set forth, the combination of a stop for arresting the upward movement of the wick, an element for raising and lowering the wick, and an indicator associated with said element for showing various positions of therwick, said mdicator being trlctionally adjustable with' respect to the element, the latter having a range of movement in both directions in excess of that of the indicator, as and for the purpose specilied. f

1G. In a burner of the class set forth, the combination or" a stop for limiting the upward movement of the wick, means for aising and lowering the wick, and an indicator for showing the position of the wick and which automatically resets itself with respect to the wick raising and lower-` ing means as the latter is operated thereby to compensate for the `gradual consumption of the wick.

ln testimony whereof, 'lV hereunto affix my signature. v

LEE S. CHADWICK. 

